花粉

Moreover, storage time in liquid nitrogen was not significant to the size and activity of the pollens.

同时液氮保存油菜花粉的时间长短对花粉的大小及活力影响不大。

If your hay fever is caused by various pollens, try to keep doors and windows shut during the pollen season.

如果发烧是由各种花粉引起的，你应该在花粉季节把门和窗都关上。

The collection, morphology characters and culture condition of pollens of Magnolia sieboldii were studied, and the effects of storage temperature and time on pollen viability were investigated.

对天女木兰花粉的采集时期、形态以及培养的温度和培养基进行了研究，并探讨贮存温度和时间对花粉生活力的影响。

The collection, morphology characters and culture condition of pollens of Magnolia sieboldii were studied, and the effects of storage temperature and time on pollen viability were investigated.

对天女木兰花粉的采集时期、形态以及培养的温度和培养基进行了研究，并探讨了贮存温度和时间对花粉生活力的影响。

Methods The intra-dermal test and intranasal provocation test with ragweed pollen allergen, and specific serum IgE determination were given to patients with pollenosis. Results 85 patients were proved as ragweed pollensis in 502 patients with pollenosis based on the ARIA standard. They received step-treatment and specific immunotherapy.

在就诊的花粉症患者中，通过豚草花粉变应原皮内试验、鼻黏膜激发试验、血清特异性IgE测定等检测方法，按照&ARIA&关于变应性鼻炎新的分类标准进行了分类和阶梯式治疗及特异性免疫治疗。

The sterile pollens were very concerned with non-equality of homologouschromosomes at two polars,and the difference of pollen yields among individuals werelikely related with disintegration of Tapetum in Prophase I.

其中败育花粉的产生与同源染色体的不均衡分配关系最为密切，而花粉产量的差异则可能是在减数分裂前期I时即发生绒毡层解体而造成的，其根源仍在于毛白杨染色体的异源性，此外易位、倒位等染色体结构变异和天然三倍体的存在也常常会加剧人们对毛白杨配子败育严重的印象。

Our results indicated that tansgene should not increase the risk of pollen-mediated escape and damage the genetic divergy, based on transgenic rice. A new fast method of risk assessement for genetic divergy was proposed. Our studies also indicated that a wide coverage of wind-dispersed pollen of Bt-transgenic rice has potential risk to sericulture in the mulberry-rice mixed cropping area of southern China.

本研究结果初步表明，转基因并不会引起水稻导入基因通过花粉漂流杂交逃逸的风险，对水稻遗传多样性不会造成影响；提出了一种快速评估转基因对遗传多样性影响程度的新方法；对转基因花粉可能对我国南方桑稻混种区养蚕业的影响研究表明，抗虫等转基因水稻在这些地区商业化生产可能会对养蚕业造成危害，需要进一步开展评估研究。

Ray florets elongated faster than disc florets from phase P3, when tetrads of haploid microspores appeared, and the pigmentation of the ray floret began when the pollen grains showed germination apertures in the disc florets of the first whorl. The effects of light, sugar and GA3 on flower growth and development were investigated in vitro. Inflorescences in the P2 phase or later could grow and bloom in vitro, and sucrose, GA3 and light promoted flowering.

研究表明，分化完全的舌状花在P3期、即花粉细胞四分体出现之后长度超过盘状花，在盘状花的雄蕊出现具有萌发孔的花粉粒之后，舌状花开始着色。P2以后的花序经离体培养可以开放，光、糖和GA3对花序的生长和开放有显著的促进作用。

When F1 individual cross with white-flowered individual, the offspring was separated with 1:1. white-flowered group is better than purple flowers group in many characters.

白花株系与紫花株系相比，植株生长旺盛，植株高、株幅大，每花的雄蕊数多，花粉粒大、花粉量少，果内种子数少、果实大、产量高。

Allergic rhinitis is most commonly caused by grass pollen, but tree and weed pollens and mould spores can also cause attacks.

过敏性鼻炎是最常见的所造成的草花粉，但树木和杂草花粉和霉菌孢子也可以导致攻击。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。